Joseph d



amd @Winn JOSEPH D. ALVORD, OF BRIDGEPORT, CONNECTICUT.

Letters PalcnitNo.`102,4(i8, (lated 'May 3, 1870.

IMPROVEMENT N. DIES FOR DRAWING- WIRE.4

The Schedule referred to in these Letters Patent and making p zu'tno the Sams To all whom it may concern:

Bc it known that I, JOSEPH D. IALVORD, ofBridgeport, in the county of Fairfield and Sta-te of Connecticut', have invented ai certain new and useful Improvement in Dies for Drawing Vire, of which the following is u. full, clear, and exact description.

The object ofy my invention is to so construct u. die for drawing` wire that the substance for lubrication shall pass into and through the die with the mei-al and thoroughly lubriczrte it on all sides, und

A My improvement consists in thrilling :L spiral thread or groove in the die.

In the accompanying drawings- Figure 1 is n plan or top View of my improved die, und

Figure 2 u central section of the smnc.

As the metzd is drawn through the die A oil is supplied iu thc usual war-y, und enters the groove c in thc l Witnesses F. Hum), A.. R. LAcnY. 

